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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);
namespace Magento\Catalog\Model\Attribute\Source;
use Magento\Eav\Model\Entity\Attribute\Source\AbstractSource;
use Magento\Eav\Model\Entity\Attribute\Source\SpecificSourceInterface;
use Magento\Framework\Api\CustomAttributesDataInterface;
use Magento\Catalog\Model\Attribute\Backend\AbstractLayoutUpdate as Backend;
use Magento\Framework\Model\AbstractExtensibleModel;
/**
* List of layout updates available for a catalog entity.
*/
abstract class AbstractLayoutUpdate extends AbstractSource implements SpecificSourceInterface
{
/**
* @var string[]
*/
private $optionsText;
/**
* @inheritDoc
*/
public function getAllOptions()
{
$default = Backend::VALUE_NO_UPDATE;
$defaultText = 'No update';
$this->optionsText[$default] = $defaultText;
return [['label' => $defaultText, 'value' => $default]];
}
/**
* @inheritDoc
*/
public function getOptionText($value)
{
if (is_scalar($value) && array_key_exists($value, $this->optionsText)) {
return $this->optionsText[$value];
}
return false;
}
/**
* Extract attribute value.
*
* @param CustomAttributesDataInterface|AbstractExtensibleModel $entity
* @return mixed
*/
private function extractAttributeValue(CustomAttributesDataInterface $entity)
{
$attrCode = 'custom_layout_update';
if ($entity instanceof AbstractExtensibleModel
&& !$entity->hasData(CustomAttributesDataInterface::CUSTOM_ATTRIBUTES)
) {
//Custom attributes were not loaded yet, using data array
return $entity->getData($attrCode);
}
//Fallback to customAttribute method
$attr = $entity->getCustomAttribute($attrCode);
return $attr ? $attr->getValue() : null;
}
/**
* List available layout update options for the entity.
*
* @param CustomAttributesDataInterface $entity
* @return string[]
*/
abstract protected function listAvailableOptions(CustomAttributesDataInterface $entity): array;
/**
* @inheritDoc
*
* @param CustomAttributesDataInterface|AbstractExtensibleModel $entity
*/
public function getOptionsFor(CustomAttributesDataInterface $entity): array
{
$options = $this->getAllOptions();
if ($this->extractAttributeValue($entity)) {
$existingValue = Backend::VALUE_USE_UPDATE_XML;
$existingLabel = 'Use existing';
$options[] = ['label' => $existingLabel, 'value' => $existingValue];
$this->optionsText[$existingValue] = $existingLabel;
}
foreach ($this->listAvailableOptions($entity) as $handle) {
$options[] = ['label' => $handle, 'value' => $handle];
$this->optionsText[$handle] = $handle;
}
return $options;
}
}